ATI RN
WGU Pathophysiology Final Exam
1. What long-term risks should the nurse discuss with a patient starting on hormone replacement therapy (HRT)?
- A. HRT is associated with increased risks of cardiovascular events and breast cancer, so these risks should be discussed with the patient.
- B. HRT can improve mood and energy levels, but it also increases the risk of osteoporosis.
- C. HRT can increase the risk of venous thromboembolism, so patients should undergo regular screening.
- D. HRT decreases the risk of fractures, but it also increases the risk of developing diabetes.
Correct answer: A
Rationale: The correct answer is A. When starting on hormone replacement therapy (HRT), the nurse should discuss the increased risks of cardiovascular events and breast cancer with the patient. These risks are important to consider to make an informed decision. Choice B is incorrect as HRT does not increase the risk of osteoporosis; in fact, it may help prevent it. Choice C is incorrect as while HRT can increase the risk of venous thromboembolism, regular screening is not the primary focus for discussion. Choice D is incorrect as HRT does not decrease the risk of fractures and is not primarily associated with an increased risk of developing diabetes.
2. A toddler is displaying signs/symptoms of weakness and muscle atrophy. The pediatric neurologist suspects it may be a lower motor neuron disease called spinal muscular atrophy (SMA). The client's family asks how he got this. The nurse will respond:
- A. This could result from playing in soil and then ingesting bacteria that is now attacking his motor neurons.
- B. No one really knows how this disease is formed. We just know that in time, he may grow out of it.
- C. This is a degenerative disorder that tends to be inherited as an autosomal recessive trait.
- D. This is a segmental demyelination disorder that affects all nerve roots and eventually all muscle groups as well.
Correct answer: C
Rationale: The correct answer is C. Spinal muscular atrophy (SMA) is an inherited disorder, often autosomal recessive, that affects lower motor neurons. Choice A is incorrect because SMA is not caused by ingesting bacteria from playing in soil. Choice B is incorrect as SMA is not something that a person grows out of. Choice D is incorrect because SMA is not a demyelination disorder that affects nerve roots and muscle groups.
3. What causes hepatic encephalopathy?
- A. A brain infection
- B. Increased ammonia levels in the bloodstream
- C. Decreased albumin blood levels
- D. Untreated chronic bronchitis
Correct answer: B
Rationale: Hepatic encephalopathy is caused by increased ammonia levels in the bloodstream. Ammonia, a byproduct of protein metabolism normally processed by the liver, accumulates in the bloodstream when the liver is unable to function properly. This excess ammonia affects brain function, leading to symptoms of hepatic encephalopathy. Choices A, C, and D are incorrect because they do not directly relate to the pathophysiology of hepatic encephalopathy.
4. How does influenza immunization produce immunity?
- A. The virus from the vaccine remains in the body until the end of the season
- B. An attenuated virus causes immune system suppression and triggers immunity
- C. The body identifies the virus and develops antibodies against the virus
- D. The vaccine remains in the injection site and produces immune cells
Correct answer: C
Rationale: The correct answer is C. Influenza immunization works by introducing a weakened or inactivated form of the virus into the body, allowing the immune system to recognize it as foreign. This recognition triggers the production of antibodies specific to the virus. Choice A is incorrect as the virus in the vaccine does not remain in the body until the end of the season. Choice B is incorrect as an attenuated virus does not cause immune system suppression but rather stimulates an immune response. Choice D is incorrect because the vaccine does not stay at the injection site but rather prompts a systemic immune response throughout the body.
5. A patient develops itching and burning of the vaginal vault while taking an anti-infective to treat strep throat. What fungal agent has most likely caused the burning and itching?
- A. Cryptococcus neoformans
- B. Candida albicans
- C. Aspergillus
- D. Dermatophytes
Correct answer: B
Rationale: The correct answer is B: Candida albicans. Candida albicans is a common fungal agent responsible for causing vaginal yeast infections characterized by itching and burning. It is known to overgrow in the vagina, especially when the normal vaginal flora is disrupted, such as during antibiotic use. Cryptococcus neoformans is more associated with causing meningitis in immunocompromised individuals, not vaginal symptoms. Aspergillus is more commonly associated with lung infections and allergic reactions, not vaginal infections. Dermatophytes typically cause skin infections like ringworm, not vaginal symptoms.
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